55805862 has 16 divisors (see below), whose sum is σ = 127556352. Its totient is φ = 15944520.

The previous prime is 55805861. The next prime is 55805887. The reversal of 55805862 is 26850855.

It is a super-2 number, since 2×55805862² = 6228588467126088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55805862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55805861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664314 + ... + 664397.

It is an arithmetic number, because the mean of its divisors is an integer number (7972272).

Almost surely, 2^55805862 is an apocalyptic number.

55805862 is an abundant number, since it is smaller than the sum of its proper divisors (71750490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55805862 is a wasteful number, since it uses less digits than its factorization.

55805862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328723.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 55805862 is about 7470.3321211309. The cubic root of 55805862 is about 382.1436143944.

The spelling of 55805862 in words is "fifty-five million, eight hundred five thousand, eight hundred sixty-two".